Method of forming glass blown bottles and molds therefor.



PATENTBD JAN. 8,190'7.l

v l A. W. HUTGHINS. MET-HOD OF FORMING GLASS BLOWN BOTTLES AND MOLDSTHEREFORE'.

APPLICATION FILED MAY '7,A1906.

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APPLICATION FILED MAY 7, 1906.

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UNITED STATES- YPerrinrr onirica.

ARTHUR W. HUTOHINS, OF PROVIDENCE, RHODE ISLAND. METHOD F FORMING GLASSBLOWN BOTTLES AND MOLDS THEREFOR.

Specification of Letters Patent.

Patented Jan. 8, 1907.

To a/ZZ whom it may concern.:

Be it known that I, ARTHUR W. HUTcHINs, a citizen of the United Statesof America, and a resident of Providence, in the county of Providenceand State of Rhode Island, have invented certain new and usefulImprovements in Methods of Forming Glass Blown Bottles and MoldsTherefor, of which the following is a specification.

'My present invention relates to novel improvements in the manufactureof dosemeasuring bottles, so called, and in molds therefor. An exampleof a bottle of the class referred to is shown and described in UnitedStates Patent No. 570,759, wherein the neck portion of the bottle isoffset or upwardly inclined from the center of the body and alsoreversely bent and terminates n an outlet or nozzle arranged 'atsubstantially right angles to the said inclined portion of the neclHeretofore in the manufacture or moldin of bottles havin the necksthereof provide( with integral dose-measuring members a great amount oflabor, time, and money have been expended, the result being that bottlesof this type have not hitherto been successfully and commerciallyproduced `and introduced owing to the materially increased cost ofmanufacture as compared with the plain or usual type of bottle.

The object I have in view is to provide the bottle-maker with a mold ormeans in the manipulation of which he is enabled to readily, easily, andsuccessfully produce dosemeasuring bottles in a comparativelyinexpensive manner, the cost being not much, if

any, in excess of that involved in making the usual plain bottle.

'In order to properly blow bottles in the molds as usually constructed,as inproducin g bottles having the necks at the center thereof, theglass-blower keeps the blowpipe in the center of the Work, so that thestock or glass can expand equally on all sides of the mold. In theproduction of bottles where the neck is to be offset or non-centralwith. relation to the body portion, as in making dose-measuring bottles,the thickness of the glass at the side nearest the neck is liable to bemuch greater than that of theside farthest from the neck. In order toovercome this defect as much as possible, the practice heretofore hasbeen substantially as follows: The blower first blows the body portionof i the bottle as near the center of the blowpipe as practicable. Thenwhilethe glass is still hot the neck or stem is drawn to'one side of thebody, after which the long neck isbent at right an les to the bottle inthat portion of the mol which forms the measuring part or member, thusnecessitating a great amount of extra work as compared with the time,&c., involved in making a common bottle.

By means of my invention the glass-blower is enabled to make adose-measuring bottle with-facility and economykthat is to say, by theuse of my improved mold all the former difficulties attending themanufacture of dose-measuring bottles are so reduced that the operationis practically as simple as that employed in making ordinary bottles.The first step in the-operation after the mold-boy closes the sectionsof the mold around the mass of hot glass or stock is for the blower orskilled workman to blow the glass so as to fill the mold, thus resultingin the production of a plain bottle having a substantially central neck.It may be stated that one side of the improved mold is cut awaycontiguous to the junction of the neck and body portions of the bottle,the corresponding opening thus made being substantially V-shaped andfilled by a swinging initial-forming section or member in which isformed'that portion of the matrix proper constituting the complementarypart of the mold. The mold-boy next retracts said swinging member fromthe mold, thereby exposing the corresponding part of the still hot andplain bottle, and at the same time swings into the said `open space orgap another V-shaped, but solid member, thus filling the space andconcurrently forcing the glass laterally to form a bend or gooseneck inthe upper part of the bottle. I may explain that the major or baseportion of the mold is pivotally mounted at or near the point or apexofthe V-opening and is locked in the normal position during thepreceding steps. The mold is next unlocked and swung upwardly t0 itslimit and resecured, the still hot glass readily adapting itself to.said changed position, thereby completing The mold is the formation ofthe bottle. next opened and the bottle removed therefrom, followed byreturning the several parts to the normal position preparatory torepeating the bottle-making operation. While the several steps have thusbeen described at length, in practice, however, the operations IOO IOS

IIO

- l upper are effected easily, rapidly, and accurately by the mold-boy,the skilled workman at the same time simply keeping the plastic glass(incased in the mold) distended by blowing so as to completely fill themold, the subsequent manipulations of it whereby the plain bottletherein is transformed or converted while hot into the dose-dispensingbottle being readily and quickly accomplished'by the mold-boy incoperation with the blowers work,as just stated.

' In the accompanying two sheets of drawings, Figure l illustrates inplan view my iinproved mold, the Several parts being shown in the normalposition or relation and also showing the plain bottle blown therein.Fig. 2 is a similar view showing the grooved or initial-forming sectiontemporarily removed from the mold and the plain o r ungrooved sectionsubstituted therein preparatory to producing the bend in the neck, thetop or front half of the mold or flask and some of the other parts beingomitted. Fig. 3 is a similar top view, but showing the lower or swingingportion of the mold swung upwardly to its limit to complete the bend,whereby the axis of the neck is formed at an angle with that of the bodyportion and correspondj'ng with the completed bottle. Fig. 4 is apartial plan view showing more in detail the relation of the latch, &c.,corresponding with the position represented in Fig. 2. Fig. 5 is avertical sectional view taken substantially on lines :c a; of Figs. 2and 4. Fig. 6 represents a partial side elevation of the mold partly insection as viewed from the left of Fig. l, the section part taken online z z of the latter figure; and Fig. 7 is a front elevation ofthecompleted dose-measuring bottle detached from the mold.

The following is a more detailed description of my improved portablemold A and the manner of operating the sazne in producing bottles.

As drawn, the several parts are mounted on a fiat base c. Theinteriorly-recessed mold or flask proper, B, except the parts laterdescribed, consists ofthe fiat back or bottom sections l) and b andcorresponding front sections c and c', superposed upon and hinged to thefirst-named sections. rlhe adjacent flat faces of the upper and lowersections are made true and parallel, each being recessed and forming thecounterpart of onehalf of the bottle or other article to be produced ormolded therein. The lower neckforming section b is stationary and hasthe fellow section c hinged thereto. The lower or body-forming section bis pivoted to f the base a by means of a pin p, located 'at or near thecenter of the irregular j oint-line c. (Shown clearly in Figs. 1 and 2.)The fellow or upper member c is hinged to part b substantially as shownyor in any suitable way.

i The side or edge of the body part of the mold opposite the hingedside, and which I designate the inner edge, is cut at an angle, therebyforming in conjunction with the corresponding edge of parts b and d, asubstantially V-shaped opening b2, its apex being located, as drawn, ator near the center of said pivot p. A curved slot i is formed in thebase c, in which a pin i, secured to the bottom of mold member b, isadapted to move. This slot limits the movement of the mold when thelatter is swung from its normal position.

A spring-pressed horizontal rod t is axially movable in the base a, itsinner end having a latch or dog t secured thereto and movable in recesst2 and arranged to engage and interlock with a notch formed in the loweredge of member b, whereby the latter is normally secured in positionagainst lateral movement.

Two suitably shaped and positioned swinging levers e and d are pivotedto the base and connected together by a link Z,"the arrangement beingsuch that the levers are adapted to move simultaneously, but at varyingangular distances. The free ends of said levers are each shaped so as toconform to and snugly fill the said mold-opening b2 and when in useforming the complementary section thereof. Tne end portion d of lever d,which may be termed the primary formingsection, is cut away, asindicated by dotted. line d2, so as to form, when in use and inconjunction with the other members, the complement or finished mold. Abottle then produced in the mold would have, say, the normal formrepresented by dotted lines in Fig. 1. The free end e of the other levere is solid or ungrooved. The lever also has a flat latch-bar m, jointedthereto at m4, its lower portion having a longitudinal slot m and an IOCinner side notch fm2, the latter, when the bar is suflicientlydepressed, being arranged to automatically engage a suitably-positionedpin fa, secured to and depending from the under side of mold-section l).An endwisemovable spring-pressed rod s extends horizontally in the baseaand carries at its inner end a pin r, movable in the elongated openingr, formed in the upper side of the base and also being in operativeengagement with the said slot m of the bar m. (See also Fig. 4.) Thus itwill be seen that the act of retracting lever d from the normalposition, Fig. 1, in the arrow direction forcibly swings the lever e,connected therewith, downwardly past the end d and into the then openspace b2. At the same time the guided latch-bar 'm is forced downwardlyand laterally, the notch m2 thereof automatically engaging the molds pinn and practically locking the bar and mold-section together. Figs. 2 and4 represent the corresponding position and relation of the parts. Now inorder to rotate the said mold-section on its pivot p the latch or dog tI'io portion of the hot glass to a of the pin i, with the end of -boltc2, fast to member c Vmold, as shown in Fig. l.

.ing the mold, the mold-boy is swung rearwardly to unlock the mold,followed by swinging lever e out of the opening b2, the interlocked barm at the same time operating to vibrate the mold upwardly to its limitor until arrested by the engagement the slot i', the dog` t/ meanwhileautomatically moving upwardly into engagementwith the outer notch t3 'ofthe mold member, thereby locking the latter ilp the flexed position, allas indicated in 'gfhe top members of the mold B may be movably connectedtogether by thebent ilat vand cooperating with member c3, secured to thepart c of the In order to produce the dose-measuring bottle D,(represented in Fig. 1,) the top or cover part kof the already-lockedmold is firsty opened by means of handle fw or other suitable device,followed by placing the properlyheated and tube-connected glass bulb inthe open matrix-chamber and reclosing said top part, thereby inclosingthe bulb therein. The movable section d is next placed in position7 theparts then appearing as represented in Fig. 1. The workman-now blows theglass until it covers or conforms to the entire surface of themold-cavity, the bottle then having a corresponding shape, as indicatedin Fig. 1, the blow-tube, however, being omitted. The mold-boy nextwithdraws said section d from the mold-opening b2 and simultaneouslyinserts section e therein to its limit, thereby indenting and changingthe adjacent V-shaped form, said movement at the same time causing thelatch-rod m to move into engagement with the drawing-pin n of the mold.(SeeFig. 2.) After depressing the dog t', thereby unlocknext swings thelever e upwardly, thus withdrawing the said section c from the mold andat the same time causing the` bar m connected with the lever and mold toswing the latter on its pivot p until the moving pin t is arrested bythe end of slot i, thereby practically closing the V- shaped openingformed in the bottle, the dog t at the same time automatically engagingthe outer notch t3 of the mold and locking the latter in its changed. orangular position. The corresponding relation of the parts is representedin Fig. 3. The mold is next opened, the bottle D, (then having themeasuringcavity 0,) removed therefrom, and the said pivoted portion ofthe mold swung back to its original or normal position, first, however,unlocking it from the dog member tf, the latter reengaging the centralnotch, when the mold becomes normally stationary, as stated.

The locking-bar m is next, by means of the pull-rod s, released from thepin n, thereby freeing the lever e and permitting it to be retractedpreparatory to introducing another l bottle charge into the mold,closing the latl ter, again inserting the sectional into the opening b2,and followed by the other steps, as before described.

While glass-blowers molds heretofore employed have been separable orhinged and adapted to produce therein bottles or articles having simplythe form and dimensions of the normal matrix or mold cavity, they werenot so constructed and. arranged that the normal bottle while stillheated and remaining in the mold could be transformed into a differentshape. My improved mold is well adapted to the blowing or roductiontherein of a plain or normal bott e, which immediately thereafter may beeasily and quickly changed to a different predetermined form by simplymanipulating certain movable or auxiliary members of the mold, therebycompletely shaping the work before the mold is opened to remove ittherefrom. This feature or princi le discovered by me is embodied andemployed in my improved mold, illustrated and described herewith, theresult being, substantially as stated, that the re-forming of a plain orinitially-formed bottle while contained in the mold during itscompleteproduction may be made by the glass-blower and yhis assistant nearly asrapidly and. cheaply as a plain bottle molded in the usual manner.

Thus it is evident that the inven- `9 tion possesses great economicadvantages I over the means and methods heretofore employed incommercially producing, say, dosedispensing bottles or otherpeculiarly-sh aped articles of glass in which a sharp bend or acuteangle is formed in the walls thereof and wherein the thickness of thelatter is to be substantially uniform throughout, the fact being bornein mind that it is practically impossible to blow the glass uniformlyaround a comparatively sharp edge or similar obstruction fixed in themold.

I claim as my invention and desire to secure by United States LettersPatent- 1. The improvement in the process of producing glass blownbottles in separable molds, the same consisting in introducing thecharge of heated glass into the open mold, then closing the mold andblowing said charge of glass so as to normally l'ill the molds matrixthereby forming an initial or normal bottle, then manipulating a sidesection of the mold so as to produce an indentation in and located at ornear the base of the neck of the still heated and confined bottle, andthen opening the mold and removing the bottle therefrom.

2. An improvement in the process of producing glass blown bottlesinseparable molds, the same consisting in blowing the heated glass orcharge confined in the mold so as to form an initial or normal bottle,removing a portion of the mold and substituting another member thereforto change the form of the corresponding part of the bottle, followed bywithdrawing the said substitute member lOO from the mold and at the sametime changing the axial relation of the body and nozzle portions of thebottle to each other while still confined in the mold, and then openingthe mold and removing the practically completed bottle therefrom.

3. The method of producing in a separable mold a blown-glass bottlehaving an irregular shape from a plain or normal shaped bottle while thelatter is still in a plastic state and confined in said mold, whichconsists in removing a section of the mold and exposing thecorresponding part of the bottle, introducing a forming-section into themold in lieu of said removed section to engage and re-form the saidexposed part of the bottle, then removing the forming-section, followedby swinging portions of the mold proper to practically close the openinguncovered by the said removed section, and then opening the mold andremoving the completelyshaped bottle therefrom.

4Q; As an improved article of manufacture, a separable normally closedmold having a portion of its side wall and including the correspondingpart of the matrix cut away' or removed at a point contiguous to thebase of the neck of the bottle so as to expose the adjacent part of themolds interior, and a man# ually-movable section operatively connectedwith the mold, the same also forming the counterpart of and adapted tofit and close said cut-away portion of the mold and at the same timeforming the complementary part of the matrix.

`5. A se arable mold for shaping glass blown bott es, the samecomprising a plurality of manually-movable sections, one of whichextends transversely into the molds matrix at a point contiguous to thebase of the bottles neck thereby adapting the mold to produce a normalshaped bottle, and a transforming section operatively connected with andforming a part of the mold, adapted and arranged to be temporarilysubstituted for the first-named section for changing the form of thebottles body adjacent the neck while the bottle is still confined in themold, substantially as hereinbefore described.

6. The combination with a separable bottlc-mold having the major or bodyportion thereof pivotally mounted, and having the sides or edges ofthestationary and movable portions adjacent the pivot-point cut away toform a lateral opening extending into the matrix, ofoperatively-connected forming and transforming sections adapted to besuccessively introduced into and removed from said opening, and meansconnected with said pivotally-mounted part of the mold for swinging thelatter from the normal position, substantially as hereinbeforedescribed'and for the purpose set forth.v

. 7. The combination with a separable bottle-mold having the major orbody portion thereof pivotally mounted, and having the sides or edges ofthe stationary and movable portions adjacent-the pivot-point cut away toform a lateral opening extending into the matrix, ofoperatively-connected forming and transforming sections adapted to besuccessively introduced into and removed from said opening, a latchmovable with said section members adapted to connect with saidpivotally-mounted part of the mold to swing the latter from the normalposition, and means for locking the mold in said normal and changedpositions.

8, The combination with a separable mold having fixed and movableportions and a lateral opening extending into the matrix thereof, ofconnected swinging forming and transforming members, d and e,respectively, adapted to be successively introduced into and withdrawnfrom said mold-opening, means for swinging the main or body portion ofthe mold in an angular direction from its normal positionyso as topractically close said lateral opening thereby at the same time changingthe normal relation of the` body and neck portions of the bottle to eachother, a stop for limiting the degree of said angular movement, andmeans for locking the mold in its said normal and angular positions.

Signed at Providence, Rhode Island, this 4th day ofMay,1906.

ARTHUR W. HUTCHINS.

Witnesses:

GEO.. H. REMINGTON, C. E. INCE.

